I've noticed this too - on v9 there's often a noticeable pause after clicking on some thoughts before they get centred; it's not consistent, but I think it happens mostly on parent thoughts with many children. Setting the animation speed faster only makes the movement after this pause quicker.

I was just playing with thought activation to see if I could spot a pattern, and found on one occasion I had to click three times on a thought before it expanded. Not sure what's going on there, but maybe activating a parent thought parses the tree of children before updating the UI?

@sibleyd - the slowness in the video can be seen when you look at the time it takes for the mouse to move over a thought until the thought turns green. You can also see if if you turn your volume up. You can hear the mouse click, then it usually takes a second before anything happens. When the animation begins, it's usually pretty fast, but there's a significant lag from the time of user input to UI response.

Marcus, it appear to only be sluggish on specific thoughts. You might try turning off Embedded Browser and or Previews in Preferences > UI to see if that resolves it.If so, and it is due to the preview, one of the things I do for particularly slow websites is to just add a note. That way it only has to load the note instead of the entire site, and I can still switch attachment tabs if I need (and it's way better than losing the web preview or document preview for everything)

Turning off previews speeds it up some, and turning off expanded mode makes it even faster. For now, I'll just use it that way, though I would very much love to see expanded mode work as fast as it does in v8!

My notebook also has SSD drive , i5 processor ,8gb ram. no other software are active on background. It is a very common issue. people who has i7 processor also meet the same.you just make your brain thoughts more complicate and in expand view, and I guess you will have the experience .

My notebook also has SSD drive , i5 processor ,8gb ram. no other software are active on background. It is a very common issue. people who has i7 processor also meet the same.you just make your brain thoughts more complicate and in expand view, and I guess you will have the experience .

If you are in normal + (expanded) view, there should be a dramatic difference between 9.0.232 and 9.0.231. If you are not seeing it, then you must be experiencing a different issue. Please post a screenshot of what you have onscreen when the problem is happening.

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